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harbour-core/harbour/source/rtl/checkbox.prg
Przemyslaw Czerpak e47d291938 2006-10-04 02:30 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbclass.ch
    * most of the rules rewritten
    ! fixed some wrong rules and general cleanup
    + added additional code validation
    ! fixed compilation of more then one class in single file.
      Now it's even possible to declare all classes at beginning of
      single file and then implementing their methods in any order
    ! fixed using static classes and classes
    ! fixed compilation without <ClassName>_ prefix in method names
    + added support for HB_CLS_NO_DECORATION macro which disable
      adding <ClassName>_ prefix to method names - this macro is
      set by default when HB_SHORTNAMES is set.
    + added support for declared parameters validation - it can be
      disabled with HB_CLS_NO_PARAMS_ERR and I had to disable it
      by default due to problems with our preprocessor.
      Ryszard seems that our PP has serious problems with decoding
      directives when there is no space between symbol and some other
      non symbol character. I had to add some workarounds and even
      introduce buggy rules to make it working. Please look at it.
      You can remove #define HB_CLS_NO_PARAMS_ERR from hbclass.ch
      and try to rebuild Harbour core code to see the problem.

  * harbour/include/hboo.ch
  * harbour/source/vm/classes.c
    + added support for new primitive message: HB_OO_MSG_PERFORM

  * harbour/source/rtl/tclass.prg
    - removed <lPersistent> parameter from HBClass messages and
      internals data. Persistent is supported as scope bit and
      separate variable was redundant.
    - removed stripping of () from message names. Here is not a place
      to fix wrong preprocessor rules.

  * harbour/utils/hbtest/rt_class.prg
    * use: METHOD PROCEDURE ... CALSS ...
      instead of: PROCEDURE ... CALSS ...
      The first version is preferable syntax.

  * harbour/source/debug/dbgtmenu.prg
  * harbour/source/rtl/checkbox.prg
    ! fixed some parameters in method declaration - global cleanup
      will have to wait for preprocessor fixes

   Hi all,
   Please make test with current hbclass.ch code.
   I hope that I haven't broken too much things ;-) but I rewrite
   from scratch most rules and it's possible that I missed sth or
   made some stupid typos. Current version is much shorter and should
   be easier to updated. For sure I've intentionally changed one thing.
   CLASSDATA was ignoring SHARED attribute and always created shared
   class variables. Seems that it was long existing typo but the fix
   may interact with already existing code which needs SHARED class
   variables but does not use SHARED clause in CLASSDATA declaration.
   In such case please update it and add missing SHARED.
   Also in the end of CLASS declaration we have:
      [ ; #translate Super( <SuperClassN> ): => ::<SuperClassN>: ] ;
      [ ; #translate Super( <SuperClass1> ): => ::<SuperClass1>: ] ;
      [ ; #translate Super(): => ::<SuperClass1>: ] ;
      [ ; #translate Super: => ::<SuperClass1>: ] ;
      [ ; #translate ::Super : => ::<SuperClass1>: ]
   These rules introduce very serious bug - they are breaking supercasting
   in code which makes sth like:
      ::super:super:super:msg
   or in any other code which sends SUPER message to some other class
   objects. I will have to remove them. At least the last three ones.
   There were some other things I wanted to write about but it's too late
   and I'm to tired - sorry. If you will have any question please ask. if
   you will notice some problems with current rules please inform me.
2006-10-04 00:33:00 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* CHECKBOX class
*
* Copyright 2000 Luiz Rafael Culik <culik@sl.conex.net>
* www - http://www.harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "common.ch"
#include "hbsetup.ch"
#include "hbclass.ch"
#include "button.ch"
#ifdef HB_COMPAT_C53
CLASS HBCHECKBOX
Data Buffer init .f.
Data Caption
Data CapRow
Data CapCol
Data Cargo
Data Col
Data colorspec
Data FBlock
Data HasFocus init .f.
Data Message init ""
Data Row
Data SBlock
Data Style init "[û ]"
Data lCursor
Data Typeout init .f.
DATA ClassName init "CHECKBOX"
METHOD New(nRow,nCol,cCaption)
METHOD SetFocus()
MESSAGE Select() METHOD _Select
METHOD KillFocus()
METHOD DisPlay()
METHOD HitTest( nMouseRow, nMouseCol )
ENDCLASS
METHOD New(nRow,nCol,cCaption)
Local cColor:=''
::Buffer := .f.
::Caption := cCaption
::CapRow := nRow
::CapCol := nCol+3+1
::Col := nCol
if IsDefColor()
::ColorSpec:="W/N,W+/N,W/N,W+/N"
else
cColor := SetColor()
::ColorSpec:= __guicolor(cColor, 5) + "," + ;
__guicolor(cColor, 2) + "," + __guicolor(cColor, 1) + ;
"," + __guicolor(cColor, 4)
endif
::HasFocus := .f.
::Message := ""
::Row := nRow
::Style := "[û ]"
::Typeout := .f.
return Self
METHOD SetFocus() CLASS HBCHECKBOX
if !::HasFocus .AND. ISBLOCK( ( ::lCursor := setcursor(0), ;
::HasFocus := .T., ::display(), ::FBlock ) )
eval(::FBlock)
endif
return Self
METHOD _Select(lState) CLASS HBCHECKBOX
Local lStatus := ::Buffer
if ISLOGICAL( lState )
::Buffer := lState
else
::Buffer := !::Buffer
endif
if lStatus != ::Buffer .AND. ISBLOCK( ( ::display(), ::SBlock ) )
eval(::SBlock)
endif
return Self
METHOD KillFocus() CLASS HBCHECKBOX
if ::HasFocus
::HasFocus := .F.
if ISBLOCK( ::FBlock )
eval(::FBlock)
endif
::display()
setcursor(::lCursor)
endif
return Self
METHOD HitTest( nMouseRow, nMouseCol ) CLASS HBCHECKBOX
Local nPosAccel, nLenCaption
if nMouseRow != ::Row
elseif nMouseCol < ::Col
elseif nMouseCol < ::Col + 3
return HTCLIENT
endif
nLenCaption := Len(::Caption)
if ( nPosAccel := At("&", ::Caption) ) == 0
elseif nPosAccel < nLenCaption
nLenCaption--
endif
if nMouseRow != ::CapRow
elseif nMouseCol < ::CapCol
elseif nMouseCol < ::CapCol + nLenCaption
return HTCAPTION
endif
return 0
METHOD Display() CLASS HBCHECKBOX
Local cColor := SetColor(), nCurRow:= Row(), nCurCol:= Col(), ;
cOldStyle := ::Style, cCaption, nPos
DispBegin()
if ::HasFocus
set color to (__guicolor(::ColorSpec, 2))
else
set color to (__guicolor(::ColorSpec, 1))
endif
SetPos(::Row, ::Col + 1)
if ::Buffer
?? SubStr(cOldStyle, 2, 1)
else
?? SubStr(cOldStyle, 3, 1)
endif
set color to (__guicolor(::ColorSpec, 3))
SetPos(::Row, ::Col)
?? Left(cOldStyle, 1)
SetPos(::Row, ::Col + 2)
?? right(cOldStyle, 1)
if !Empty(cCaption := ::Caption)
if ( nPos := At("&", cCaption) ) == 0
elseif nPos == Len(cCaption)
nPos := 0
else
cCaption := stuff(cCaption, nPos, 1, "")
endif
SetPos(::CapRow, ::CapCol)
?? cCaption
if nPos != 0
set color to (__guicolor(::ColorSpec, 4))
SetPos(::CapRow, ::CapCol + nPos - 1)
?? SubStr(cCaption, nPos, 1)
endif
endif
DispEnd()
set color to (cColor)
SetPos(nCurRow, nCurCol)
return Self
function __GUICOLOR( cPair, nPos )
Local cColor := cPair, nPosition:=0, nCommaPos:=0
cColor := hb_ColorIndex( cPair, nPos-1 )
return cColor
function _CHECKBOX_( lState, cCaption, cMessage, cColor, FBlock, SBlock, cStyle)
Local oCheck
oCheck := HBCHECKBOX():New(Row(), Col(), cCaption)
if !ISNIL( oCheck )
oCheck:Select( lState )
oCheck:Caption := cCaption
if !( cColor == nil )
oCheck:ColorSpec := cColor
endif
oCheck:Message := cMessage
if !( cStyle == NIL )
oCheck:Style := cStyle
endif
oCheck:FBlock := FBlock
oCheck:SBlock := SBlock
endif
return oCheck
function IsDefColor()
Local cColor:=SETCOLOR()
Return ( cColor == "W/N,N/W,N/N,N/N,N/W" )
function Checkbox( nR, nCol, cCaption)
Default cCaption to ''
return HBCHECKBOX():New( nR, nCol, cCaption)
#endif
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